fix: use confirmed working format for TRUSTEDPROXIES

Author: webees

Dockerfile

@@ -16,7 +16,7 @@ ENV WORKDIR=/app \
     OVERMIND_CAN_DIE=crontab \
     # Gotify settings
     GOTIFY_SERVER_PORT=8080 \
-    GOTIFY_SERVER_TRUSTEDPROXIES=[127.0.0.1,::1]
+    GOTIFY_SERVER_TRUSTEDPROXIES='["127.0.0.1"]'
 
 WORKDIR $WORKDIR